Home / 25,989.95-35,866.01-15,777.42

Finding the Fourth Proportional to 25,989.95, 35,866.01 and 15,777.42

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Solution

The fourth proportional to 25,989.95, 35,866.01 and 15,777.42 is: 21,772.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,989.95 : 35,866.01 = 15,777.42 : x
  2. Step 2: Convert to fraction form
    25,989.95/35,866.01 = 15,777.42/x
  3. Step 3: Cross multiply
    25,989.95x = 35,866.01 × 15,777.42
  4. Step 4: Simplify right side
    25,989.95x = 565,873,121.44
  5. Step 5: Solve for x
    x = 565,873,121.44/25,989.95
  6. Step 6: Final answer
    x = 21,772.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.